Had to throw my first sd2 in the bin after it died from an update.
Rikki, had the same problem with my sd2. I had the sd40 for a while...and though it sounded good...it didn’t match the Audya for sound quality. Found out from AJ that the Audya was the only keyboard Ketron made that used uncompressed .wav files. I could definitely hear a difference between the two.
Mitch